Subtract 90/60 from 35/72
1st number: 35/72, 2nd number: 1 30/60
35/72 - 90/60 is -73/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 60 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
35/72 = 35 × 5/72 × 5 = 175/360 - Likewise, for the 2nd fraction, since 60 × 6 = 360,
90/60 = 90 × 6/60 × 6 = 540/360 - Subtract the two like fractions:
175/360 - 540/360 = 175 - 540/360 = -365/360 - After reducing the fraction, the answer is -73/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72-90/60